Brake fluids can be categorized as __________ when mixed with other liquids.

When brake fluids are mixed with other liquids, they can be categorized as hazardous due to their chemical properties and potential to become corrosive or ineffective. Brake fluids, particularly those based on glycol or mineral oil, can react negatively with water, petroleum-derived products, or other fluids, leading to reduced braking efficiency and potential damage to the brake system components.

The risk of a hazardous situation increases because the mixture may alter the boiling point or introduce contaminants that could compromise the fluid's stability and performance. In automotive maintenance and safety, understanding the hazardous nature of these mixtures is essential for ensuring that brake systems remain functional and safe.